Back in the day, on the adsense website, I was able to change both the font AND the size of the text for my text-based ads that appear on my website. Now, the option to change the size is no longer visible in google, however I can still change the font name.
Today, I ran a test and noticed that in the 300x600 ad unit, 4 text-based ads appear in the one unit, but the size of the text in each one is so tiny.
I also ran a random test with my 300x250 ad unit and the text size is fine.
Is there a way I can specifically force one large text size for all ad units, even if it means adding extra google-approved text in my adsense code?